The Manifest.
More posts from The Manifest, paginated so the main blog stays lighter and faster to load.
Usability Testing: A Complete Guide
Learn how to conduct usability testing with real users. Step-by-step guide covering methods, metrics, and how to derive actionable insights from tests.
Linux - LinkedIn Skill Assessments Quizzes with Answers
Ace the LinkedIn Linux skill assessment with verified questions and answers on command-line operations, file permissions, shell scripting, process management, and system administration. Prepare for the Linux certification quiz.
JavaScript - LinkedIn Skill Assessments Quizzes with Answers
Ace the LinkedIn JavaScript skill assessment with verified questions and answers on ES6+, DOM manipulation, async programming, closures, prototypes, and modern JS frameworks. Prepare for the JavaScript certification quiz.
How to Set Up SSH Keys for GitHub (All Platforms)
Generate SSH keys for GitHub on Ubuntu, macOS, and Windows. Learn to add keys to your account, manage multiple profiles, and troubleshoot connection issues.
How to Write a Production Dockerfile for Node.js
Build small, fast, production-ready Docker images for Node.js — layer caching, multi-stage builds, non-root user, health checks, and .dockerignore explained.
Docker Compose in Production: Best Practices & Tips
Learn how to run Docker Compose in production securely. This guide covers health checks, restart policies, secrets, logging, and resource limits for deployment.
Run PostgreSQL Locally with Docker in Under 2 Minutes
Learn to run PostgreSQL locally using Docker. Includes persistent volumes, docker-compose setup, GUI client access, and essential dump or restore commands.
How to Set Up a .env File and Stop Leaking Secrets
Learn how to set up .env files in Node.js, Python, and Docker. Avoid common mistakes that expose API keys and manage your secrets safely in production.
How to Install Python on Ubuntu, macOS and Windows
Learn how to install Python 3 on Ubuntu, macOS, and Windows using pyenv and Homebrew. Includes setup for pip, virtual environments, and version switching.
How to Install VS Code on Ubuntu, macOS and Windows
Install Visual Studio Code on any OS using apt, Snap, Homebrew, or winget — with the essential extensions every developer should add first.
Python Virtual Environments: venv, uv, and When to Use Each
Keep Python projects isolated with virtual environments. Learn how to set up venv and uv, manage dependencies, and choose the right tool for your 2026 workflow.
How to Install Git on Ubuntu, macOS and Windows
Install Git on any operating system — apt, Homebrew, or the official installer — plus first-time configuration, SSH setup, and verifying your install.
How to Install Node.js on Ubuntu, macOS and Windows
Step-by-step guide to installing Node.js on Ubuntu, macOS, and Windows. Learn to use nvm and Homebrew for easy version switching and SDK management.
Vim Cheat Sheet: Modes, Navigation, Editing & Config
Complete Vim reference covering modes, movement, editing commands, search and replace, visual mode, split panes, macros, text objects, and a starter .vimrc.
How to Exit Vim, Vi, and Nano (Step by Step)
Stuck in Vim? Here is exactly how to save and exit, quit without saving, and force-quit Vim, Vi, and Nano — with every command you need and why they work.
Git Worktree Guide: Work on Multiple Branches Simultaneously
Stop stashing mid-feature for hotfixes. Learn how to use Git worktree to check out multiple branches into separate folders with real-world workflow examples.
How to Debug a Slow SQL Query in PostgreSQL
Step-by-step: find slow queries with pg_stat_statements, read EXPLAIN ANALYZE output, identify missing indexes, fix N+1 queries, and diagnose lock contention.
How to Get Your Dart Version from the Command Line
Learn the quick way to check your Dart SDK version on Windows, macOS, or Linux using the `dart --version` command.
Unsigned Columns in Laravel Migrations
Master Laravel 12 migrations with unsigned columns. Learn foreignId(), unsignedBigInteger(), and best practices for foreign key constraints in modern PHP applications.
SSH & GPG Cheat Sheet: Keys, Tunnels & Signed Commits
Complete SSH and GPG reference — key generation, ssh-agent, config file aliases, port forwarding, database tunneling, GPG signing, and signed git commits.
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